:root{--paper:oklch(95% .018 88);--paper-deep:oklch(91% .024 88);--ink:oklch(22% .035 265);--ink-soft:oklch(43% .03 263);--signal:oklch(64% .17 32);--signal-soft:oklch(78% .12 42);--water:oklch(71% .12 185);--sun:oklch(86% .14 94);--line:oklch(22% .035 265/.22);--signal-ink:oklch(47% .14 32);--water-ink:oklch(47% .08 185);--serif:"Iowan Old Style", "Baskerville", "Palatino Linotype", "Book Antiqua", Georgia, serif;--mono:"SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono", monospace;color:var(--ink);background:var(--paper);font-family:var(--mono);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-weight:400;line-height:1.5}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--paper)}body{background:var(--paper);min-width:320px;min-height:100vh;margin:0}button,a,input{font:inherit}a,button{color:inherit}:focus-visible{outline:2px solid var(--signal);outline-offset:4px}@media (forced-colors:active){:focus-visible{outline-color:canvastext}}::selection{color:var(--paper);background:var(--signal)}.skip-link{z-index:20;color:var(--paper);background:var(--ink);padding:.65rem .8rem;transition:transform .16s;position:fixed;top:.75rem;left:1rem;transform:translateY(-150%)}.skip-link:focus-visible{transform:translateY(0)}.site-header{justify-content:space-between;align-items:flex-start;width:min(100% - 3rem,86rem);margin:0 auto;padding:1.4rem 0 0;display:flex}.wordmark,.header-link,.text-link{text-decoration:none}.wordmark{color:var(--ink);letter-spacing:.08em;text-transform:uppercase;align-items:flex-start;gap:.55rem;font-size:.66rem;line-height:1.15;display:inline-flex}.wordmark-mark{border:1px solid;border-radius:50%;place-items:center;width:1.1rem;height:1.1rem;font-size:.9rem;line-height:1;display:inline-grid}.header-meta{color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase;align-items:center;gap:1.5rem;font-size:.63rem;display:flex}.header-link,.text-link{border-bottom:1px solid var(--line);align-items:center;gap:.4rem;transition:color .16s,border-color .16s;display:inline-flex}.header-link:hover,.text-link:hover{color:var(--signal-ink);border-color:currentColor}.icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.4px;width:.95rem;height:.95rem}.hero-section{grid-template-columns:minmax(0,.92fr) minmax(24rem,1.08fr);align-items:center;gap:clamp(2rem,7vw,8rem);width:min(100% - 3rem,86rem);min-height:min(48rem,100vh - 4.5rem);margin:0 auto;padding:3.5rem 0 4rem;display:grid}.eyebrow,.section-index{color:var(--ink-soft);letter-spacing:.09em;text-transform:uppercase;font-size:.64rem}.eyebrow{align-items:center;gap:.55rem;margin:0 0 2rem;display:flex}.eyebrow-dot{background:var(--signal);border-radius:50%;width:.45rem;height:.45rem}h1,h2,p{margin-top:0}h1,h2{font-family:var(--serif);letter-spacing:-.04em;text-wrap:balance;font-weight:400;line-height:.96}h1{max-width:10ch;margin-bottom:1.8rem;font-size:clamp(3.75rem,7.2vw,7.5rem)}h1 em,h2 em{color:var(--signal);font-style:italic}.hero-intro{max-width:31rem;color:var(--ink-soft);text-wrap:pretty;margin-bottom:1.8rem;font-size:.9rem;line-height:1.75}.text-link{color:var(--ink);letter-spacing:.07em;text-transform:uppercase;padding-bottom:.3rem;font-size:.68rem}.intro-band{border-top:1px solid var(--line);grid-template-columns:1fr minmax(20rem,1.6fr) 1fr;gap:2rem;width:min(100% - 3rem,86rem);margin:0 auto;padding:7rem 0;display:grid}.section-index{margin:0}.intro-statement{font-family:var(--serif);letter-spacing:-.035em;margin:0;font-size:clamp(2rem,4.2vw,4.8rem);line-height:.95}.intro-statement span{color:var(--signal);font-style:italic}.intro-aside{max-width:18rem;color:var(--ink-soft);align-self:end;margin:0;font-size:.7rem;line-height:1.7}@media (width<=760px){.site-header,.hero-section,.intro-band{width:min(100% - 2rem,40rem)}.edition{display:none}.hero-section{min-height:auto;padding-top:5.5rem;display:block}h1{font-size:clamp(3.45rem,16vw,5.5rem)}.intro-band{grid-template-columns:1fr;gap:2rem;padding:5rem 0}.intro-statement{font-size:clamp(2.7rem,13vw,4.5rem)}.intro-aside{max-width:22rem}}.chapter-nav{z-index:8;gap:.5rem;display:grid;position:fixed;top:50%;right:1.25rem;transform:translateY(-50%)}.chapter-link{color:var(--ink-soft);letter-spacing:.07em;text-transform:uppercase;grid-template-columns:1.2rem auto;align-items:center;gap:.35rem;padding:.45rem .25rem;font-size:.56rem;line-height:1;text-decoration:none;transition:color .16s;display:grid}.chapter-link:after{content:"";border:1px solid;border-radius:50%;width:.25rem;height:.25rem;transition:background-color .16s,transform .16s;position:absolute;right:0;transform:translate(.05rem)}.chapter-link.is-active{color:var(--signal)}.chapter-link.is-active:after{background:currentColor;transform:translate(.05rem)scale(1.25)}.chapter-link:hover,.chapter-link:focus-visible{color:var(--signal)}.chapter-link:hover:after,.chapter-link:focus-visible:after{background:currentColor;transform:translate(.05rem)scale(1.25)}.device-stack{min-width:0}.signal-chamber{isolation:isolate;border:1px solid var(--line);background-color:var(--paper-deep);background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);cursor:crosshair;background-position:0 0,0 0;background-size:4rem 4rem;min-height:clamp(35rem,56vw,43rem);position:relative;overflow:hidden}.signal-chamber:before,.signal-chamber:after{z-index:-1;content:"";pointer-events:none;position:absolute}.signal-chamber:before{border:1px solid oklch(22% .035 265/.14);inset:1.25rem}.signal-chamber:after{top:var(--pointer-y);left:var(--pointer-x);background:radial-gradient(circle,oklch(64% .17 32/.1),#0000 68%);border-radius:50%;width:24rem;height:24rem;transition:top .24s cubic-bezier(.2,0,0,1),left .24s cubic-bezier(.2,0,0,1);transform:translate(-50%,-50%)}.chamber-topline,.chamber-corner,.chamber-coordinate{z-index:3;color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase;font-size:.58rem;line-height:1;position:absolute}.chamber-topline{justify-content:space-between;display:flex;top:1.95rem;left:2rem;right:2rem}.chamber-coordinate{color:var(--signal-ink);font-variant-numeric:tabular-nums}.signal-canvas{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.chamber-grid line{stroke:var(--line);stroke-width:.7px}.chamber-glow{transform-origin:260px 304px;animation:5s ease-in-out infinite glow-breathe}.orbit{fill:none;stroke:var(--ink);stroke-dasharray:1 10;stroke-linecap:round;stroke-opacity:.25;stroke-width:.8px;transform-box:fill-box;transform-origin:50%}.orbit-one{animation:18s linear infinite orbit-turn}.orbit-two{stroke:var(--signal);stroke-dasharray:1 16;stroke-opacity:.6;animation:23s linear infinite reverse orbit-turn}.orbit-three{stroke:var(--water);stroke-dasharray:1 7;stroke-opacity:.6;animation:11s linear infinite orbit-turn}.signal-path{fill:none;stroke:var(--water);stroke-dasharray:.64 .36;stroke-linecap:round;stroke-width:.85px;vector-effect:non-scaling-stroke;animation:6s linear infinite signal-sweep;animation-delay:var(--path-delay)}.signal-path-0,.signal-path-8{stroke:var(--ink-soft);stroke-opacity:.35}.signal-path-1,.signal-path-7{stroke:var(--water);stroke-opacity:.65}.signal-path-2,.signal-path-6{stroke:var(--signal-soft);stroke-opacity:.75}.signal-path-3,.signal-path-5{stroke:var(--signal);stroke-opacity:.7}.signal-path-4{stroke:url(#signalFade);stroke-width:2.4px;stroke-opacity:1}.chamber-crosshair line{stroke:var(--signal);stroke-opacity:.72;stroke-width:.7px}.chamber-crosshair circle{fill:var(--paper);stroke:var(--signal);stroke-width:1.2px}.chamber-nodes circle{fill:var(--paper);stroke:var(--signal);stroke-width:1px}.chamber-nodes circle:nth-child(2n){fill:var(--water);stroke:var(--water)}.pointer-crosshair{z-index:2;top:var(--pointer-y);left:var(--pointer-x);pointer-events:none;width:2.5rem;height:2.5rem;transition:top .14s ease-out,left .14s ease-out;position:absolute;transform:translate(-50%,-50%)}.pointer-crosshair:before,.pointer-crosshair:after,.pointer-crosshair i,.pointer-crosshair b{background:var(--signal);content:"";display:block;position:absolute}.pointer-crosshair:before,.pointer-crosshair:after{width:100%;height:1px;top:50%;transform:translateY(-50%)}.pointer-crosshair:after{width:1px;height:100%;left:50%;transform:translate(-50%)}.pointer-crosshair i,.pointer-crosshair b{border:1px solid var(--signal);background:var(--paper);border-radius:50%;width:.35rem;height:.35rem;top:50%;left:50%;transform:translate(-50%,-50%)}.pointer-crosshair b{background:var(--signal);border:0;width:.2rem;height:.2rem}.knot-trigger{z-index:4;cursor:pointer;background:0 0;border:0;place-items:center;width:2.75rem;height:2.75rem;padding:0;display:grid;position:absolute;top:19%;right:17%}.knot-trigger span{border:1px solid var(--signal);background:var(--paper);border-radius:50%;width:.38rem;height:.38rem;transition:transform .18s,background-color .18s;display:block;box-shadow:0 0 0 .3rem oklch(64% .17 32/.08)}.knot-trigger:hover span,.knot-trigger:focus-visible span,.knot-trigger[aria-expanded=true] span{background:var(--signal);transform:scale(1.35)}.knot-trigger:after{width:max-content;color:var(--paper);background:var(--ink);content:"a loose thread";letter-spacing:.06em;opacity:0;pointer-events:none;text-transform:uppercase;padding:.35rem .45rem;font-size:.56rem;transition:opacity .16s,transform .16s;position:absolute;top:50%;right:2.5rem;transform:translateY(-50%)translate(.4rem)}.knot-trigger:hover:after,.knot-trigger:focus-visible:after{opacity:1;transform:translateY(-50%)translate(0)}.chamber-corner{right:2rem}.chamber-corner-top{top:5rem}.chamber-corner-bottom{color:var(--signal-ink);writing-mode:vertical-rl;bottom:7rem;left:2rem;transform:rotate(180deg)}.chamber-state{z-index:3;border-top:1px solid var(--line);letter-spacing:.08em;text-transform:uppercase;grid-template-columns:auto auto 1fr;align-items:baseline;gap:.7rem;padding-top:.75rem;font-size:.6rem;display:grid;position:absolute;bottom:1.8rem;left:2rem;right:2rem}.state-led{background:var(--signal);border-radius:50%;width:.42rem;height:.42rem;box-shadow:0 0 0 .25rem oklch(64% .17 32/.08)}.state-name{color:var(--signal-ink)}.state-note{color:var(--ink-soft);text-align:end;letter-spacing:.03em;text-transform:none}.state-track{background:oklch(22% .035 265/.16);height:1px;position:absolute;bottom:-.4rem;left:0;right:0;overflow:hidden}.state-track i{background:linear-gradient(90deg, var(--water), var(--signal));height:100%;transition:width .12s linear;display:block}.quiet-note{z-index:5;border:1px solid var(--ink);background:var(--paper);width:min(16rem,100% - 4rem);box-shadow:.45rem .45rem 0 var(--signal);cursor:default;padding:1rem;position:absolute;top:5.3rem;right:2rem}.quiet-note-label{color:var(--signal-ink);letter-spacing:.09em;text-transform:uppercase;font-size:.57rem}.quiet-note p{font-family:var(--serif);margin:1rem 0;font-size:1.25rem;line-height:1.05}.quiet-note-close{border:0;border-bottom:1px solid var(--line);cursor:pointer;letter-spacing:.08em;text-transform:uppercase;background:0 0;padding:.3rem 0;font-size:.58rem}.quiet-note-close:hover{color:var(--signal);border-color:currentColor}.device-readout{padding:1.25rem 0 .3rem}.readout-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;padding-bottom:.8rem;display:flex}.readout-heading .section-index{margin:0}.readout-intensity{color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase;font-size:.57rem}.readout-intensity b{color:var(--signal-ink);font-variant-numeric:tabular-nums;font-weight:500}.control-list{padding:.55rem 0}.control-row{border-bottom:1px solid oklch(22% .035 265/.1);grid-template-columns:6.2rem minmax(0,1fr) 2rem;align-items:center;gap:.75rem;min-height:2.75rem;font-size:.6rem;display:grid}.control-name,.control-value{letter-spacing:.08em;text-transform:uppercase}.control-value{color:var(--signal-ink);text-align:end;font-variant-numeric:tabular-nums}.control-track{grid-template-columns:2.3rem minmax(4rem,1fr) 2.3rem;align-items:center;gap:.5rem;display:grid}.control-low,.control-high{color:var(--ink-soft);text-transform:uppercase;font-size:.52rem}.control-high{text-align:end}.control-row input[type=range]{width:100%;height:1.5rem;accent-color:var(--signal);cursor:ew-resize;margin:0}.control-row input[type=range]:focus-visible{outline:2px solid var(--signal);outline-offset:3px}.device-actions{justify-content:space-between;align-items:center;gap:1rem;padding-top:.9rem;display:flex}.sequence-button,.new-pass-button{border:1px solid var(--line);cursor:pointer;letter-spacing:.07em;text-transform:uppercase;background:0 0;align-items:center;gap:.5rem;min-height:2.75rem;padding:.55rem .7rem;font-size:.58rem;transition:color .16s,border-color .16s,transform .16s;display:inline-flex}.sequence-button:hover,.new-pass-button:hover{color:var(--signal);border-color:var(--signal)}.sequence-button:active,.new-pass-button:active{transform:scale(.96)}.new-pass-button{border-color:#0000;padding-inline:0}.new-pass-button span{color:var(--signal);font-size:.9rem}@keyframes orbit-turn{to{transform:rotate(360deg)}}@keyframes signal-sweep{to{stroke-dashoffset:-1px}}@keyframes glow-breathe{0%,to{opacity:.55;transform:scale(.92)}50%{opacity:1;transform:scale(1.08)}}@media (width<=960px) and (width>=761px){.chapter-nav{right:.5rem}.chapter-link{grid-template-columns:auto}.chapter-link span:last-child{display:none}.hero-section{grid-template-columns:minmax(0,.8fr) minmax(20rem,1.2fr);gap:2.5rem}}@media (width<=760px){.chapter-nav{justify-content:flex-end;display:flex;position:absolute;top:5rem;left:1rem;right:1rem;transform:none}.chapter-link{padding:.4rem .28rem;font-size:.53rem;display:block}.chapter-link span:last-child,.chapter-link:after{display:none}.signal-chamber{min-height:min(35rem,128vw);margin-top:0}.chamber-topline{font-size:.5rem;top:1.45rem;left:1.2rem;right:1.2rem}.chamber-corner,.chamber-coordinate{font-size:.5rem}.chamber-corner{right:1.2rem}.chamber-corner-top{top:4rem}.chamber-corner-bottom{bottom:6rem;left:1.2rem}.chamber-state{grid-template-columns:auto auto;gap:.45rem;font-size:.53rem;bottom:1.2rem;left:1.2rem;right:1.2rem}.state-note{text-align:start;grid-column:2}.knot-trigger{right:14%}.quiet-note{width:min(15rem,100% - 2.4rem);top:4.3rem;right:1.2rem}.control-row{grid-template-columns:5.2rem minmax(0,1fr) 2rem;gap:.4rem}.control-track{grid-template-columns:2rem minmax(3rem,1fr) 2rem;gap:.25rem}.device-actions{flex-direction:column;align-items:flex-start;gap:.4rem}}.method-section{color:var(--paper);background:var(--ink);padding:clamp(5rem,11vw,10rem) 1.5rem clamp(3rem,7vw,6rem);position:relative;overflow:hidden}.method-section:before{background:linear-gradient(90deg, var(--signal), var(--water), transparent);content:"";width:clamp(7rem,24vw,24rem);height:2px;position:absolute;top:0;left:max(1.5rem,50% - 43rem)}.method-section:after{opacity:.14;content:"";pointer-events:none;background-image:linear-gradient(oklch(95% .018 88/.32) 1px,#0000 1px),linear-gradient(90deg,oklch(95% .018 88/.32) 1px,#0000 1px);background-size:4rem 4rem;width:45%;position:absolute;top:0;bottom:0;right:0;-webkit-mask-image:linear-gradient(90deg,#0000,#000 30%);mask-image:linear-gradient(90deg,#0000,#000 30%)}.method-heading,.method-intro,.method-field,.method-footer-line{z-index:1;width:min(100%,86rem);margin-inline:auto;position:relative}.method-heading{justify-content:space-between;margin-bottom:clamp(4rem,8vw,8rem);display:flex}.method-section .section-index,.method-heading-note,.method-footer-line,.method-figure-label,.method-figure-caption,.pass-kicker{color:oklch(95% .018 88/.62);letter-spacing:.09em;text-transform:uppercase;font-size:.6rem}.method-section .section-index,.method-heading-note{margin:0}.method-heading-note{text-align:end}.method-intro{grid-template-columns:minmax(0,1.25fr) minmax(14rem,.55fr);align-items:end;gap:3rem;margin-bottom:clamp(4rem,8vw,7rem);display:grid}.method-intro h2,.room-intro h2,.echo-copy h2{margin:0;font-size:clamp(3.4rem,7.6vw,8rem)}.method-intro h2 em{color:var(--signal-soft)}.method-intro>p{color:oklch(95% .018 88/.68);text-wrap:pretty;max-width:26rem;margin:0 0 .25rem;font-size:.8rem;line-height:1.8}.method-field{grid-template-columns:minmax(20rem,.95fr) minmax(20rem,1fr);align-items:start;gap:clamp(2rem,8vw,9rem);display:grid}.method-figure{background:oklch(22% .035 265/.28);border:1px solid oklch(95% .018 88/.24);min-height:31rem;position:relative}.method-figure svg{width:100%;height:100%;min-height:31rem;display:block}.method-figure-grid{fill:none;stroke:oklch(95% .018 88/.13);stroke-width:.7px}.method-figure-orbit{fill:none;stroke:var(--water);stroke-dasharray:1 10;stroke-opacity:.6;stroke-width:1px;transform-box:fill-box;transform-origin:50%;animation:24s linear infinite reverse orbit-turn}.method-thread-shadow,.method-thread{fill:none;stroke-linecap:round;stroke-linejoin:round;transition:d .5s cubic-bezier(.2,0,0,1)}.method-thread-shadow{stroke:var(--water);stroke-dasharray:2 11;stroke-opacity:.35;stroke-width:4px}.method-thread{stroke:var(--signal-soft);stroke-dasharray:.68 .32;stroke-width:2.2px;animation:8s linear infinite signal-sweep}.method-thread-node{fill:var(--paper);stroke:var(--signal);stroke-width:1.4px;transition:cx .45s cubic-bezier(.2,0,0,1)}.method-thread-dot{fill:var(--signal)}.method-figure-label{justify-content:space-between;display:flex;position:absolute;top:1.25rem;left:1.25rem;right:1.25rem}.method-figure-label strong{color:var(--signal-soft);font-weight:400}.method-figure-caption{color:oklch(95% .018 88/.54);text-transform:none;margin:0;position:absolute;bottom:1.3rem;left:1.25rem}.pass-column{min-width:0}.pass-list{border-top:1px solid oklch(95% .018 88/.28)}.pass-item{color:oklch(95% .018 88/.56);cursor:pointer;text-align:start;background:0 0;border:0;border-bottom:1px solid oklch(95% .018 88/.2);grid-template-columns:2.5rem 1fr auto;align-items:center;gap:.8rem;width:100%;min-height:4.5rem;padding:.8rem 0;transition:color .18s,padding .24s cubic-bezier(.2,0,0,1),border-color .18s;display:grid}.pass-item:hover,.pass-item:focus-visible,.pass-item.is-active{color:var(--paper);border-color:var(--signal)}.pass-item.is-active{background:oklch(95% .018 88/.05);padding-inline:.6rem}.pass-number,.pass-arrow{color:var(--signal-soft);letter-spacing:.07em;font-size:.65rem}.pass-label{font-family:var(--serif);letter-spacing:-.03em;font-size:clamp(1.65rem,2.8vw,2.7rem)}.pass-detail{padding:clamp(2.5rem,5vw,4.5rem) 0 0}.pass-kicker{color:var(--signal-soft);margin-bottom:1.2rem}.pass-detail h3{max-width:12ch;color:var(--paper);font-family:var(--serif);letter-spacing:-.035em;text-wrap:balance;margin:0 0 1.35rem;font-size:clamp(2.1rem,4vw,4rem);font-weight:400;line-height:.98}.pass-detail>p{color:oklch(95% .018 88/.68);text-wrap:pretty;max-width:28rem;margin-bottom:2.25rem;font-size:.8rem;line-height:1.8}.pass-bullets{color:oklch(95% .018 88/.52);letter-spacing:.06em;text-transform:uppercase;border-top:1px solid oklch(95% .018 88/.22);grid-template-columns:5rem 1fr;gap:1rem;padding-top:1rem;font-size:.58rem;display:grid}.pass-bullets>span{color:var(--signal-soft)}.pass-bullets ul{gap:.55rem;margin:0;padding:0;list-style:none;display:grid}.pass-bullets li:before{color:var(--signal);content:"—";margin-inline-end:.5rem}.method-footer-line{border-top:1px solid oklch(95% .018 88/.22);justify-content:space-between;gap:2rem;margin-top:clamp(4rem,8vw,8rem);padding-top:1rem;display:flex}.method-footer-line span:last-child{color:var(--water);text-align:end}@media (width<=760px){.method-section{padding-inline:1rem}.method-heading{margin-bottom:4.5rem}.method-heading-note{max-width:9rem}.method-intro,.method-field{grid-template-columns:1fr;gap:2rem}.method-intro{margin-bottom:4rem}.method-intro h2,.room-intro h2,.echo-copy h2{font-size:clamp(3.1rem,14vw,5.5rem)}.method-figure,.method-figure svg{min-height:25rem}.pass-detail{padding-top:2rem}.method-footer-line{flex-direction:column;gap:.5rem}.method-footer-line span:last-child{text-align:start}}.shared-room-section{width:min(100% - 3rem,86rem);margin:0 auto;padding:clamp(6rem,12vw,12rem) 0 clamp(5rem,10vw,10rem)}.room-heading,.room-intro,.room-layout,.room-trust-line{width:100%;display:grid}.room-heading{border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr;gap:2rem;padding-bottom:1rem}.room-heading .section-index,.room-heading-note{color:var(--ink-soft);letter-spacing:.09em;text-transform:uppercase;margin:0;font-size:.6rem}.room-heading-note{text-align:end}.room-intro{grid-template-columns:minmax(0,1.15fr) minmax(14rem,.5fr);align-items:end;gap:3rem;margin:clamp(4rem,9vw,9rem) 0 clamp(4rem,8vw,7rem)}.room-intro h2{max-width:8ch}.room-intro h2 em{color:var(--water)}.room-intro>p{max-width:26rem;color:var(--ink-soft);text-wrap:pretty;margin:0 0 .25rem;font-size:.8rem;line-height:1.8}.room-layout{grid-template-columns:minmax(20rem,1.05fr) minmax(20rem,.95fr);align-items:start;gap:clamp(2rem,9vw,10rem)}.room-diagram{border:1px solid var(--line);background:var(--paper-deep);min-height:25rem;position:relative}.room-svg{width:100%;height:100%;min-height:25rem;transition:transform .6s cubic-bezier(.2,0,0,1);display:block;overflow:visible}.room-svg-0{transform:rotate(-2deg)scale(.98)}.room-svg-1{transform:rotate(1deg)scale(1.01)}.room-svg-2{transform:rotate(-1deg)scale(.96)}.room-axis{fill:none;stroke:var(--line);stroke-width:.8px}.room-ring{fill:none;stroke:var(--ink);stroke-dasharray:1 11;stroke-linecap:round;stroke-opacity:.4;stroke-width:1px;transform-box:fill-box;transform-origin:50%}.room-ring-one{animation:28s linear infinite orbit-turn}.room-ring-two{stroke:var(--water);stroke-dasharray:1 8;stroke-opacity:.75;animation:19s linear infinite reverse orbit-turn}.room-thread{fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.5px;transition:stroke .4s,stroke-opacity .4s,transform .5s cubic-bezier(.2,0,0,1)}.room-thread-a{stroke:var(--signal);stroke-opacity:.75}.room-thread-b{stroke:var(--water);stroke-opacity:.75}.room-svg-0 .room-thread-a{stroke:var(--water);stroke-opacity:.45}.room-svg-0 .room-thread-b{stroke:var(--signal);stroke-opacity:.9}.room-svg-2 .room-thread-a{stroke:var(--sun);stroke-opacity:.9}.room-svg-2 .room-thread-b{stroke:var(--signal);stroke-opacity:.45}.room-center{fill:var(--paper);stroke:var(--signal);stroke-width:1.5px}.room-pulse{fill:var(--signal);stroke:var(--paper);stroke-width:2px;animation:2.5s ease-in-out infinite pulse-point}.room-diagram-label{color:var(--signal-ink);letter-spacing:.08em;text-transform:uppercase;font-size:.58rem;position:absolute;bottom:1.25rem;right:1.25rem}.room-copy{min-width:0}.room-mode-list{border-top:1px solid var(--line)}.room-mode-button{border:0;border-bottom:1px solid var(--line);width:100%;min-height:4rem;color:var(--ink-soft);cursor:pointer;text-align:start;background:0 0;grid-template-columns:2rem 1fr auto;align-items:center;gap:.75rem;padding:.7rem 0;transition:color .18s,padding .22s cubic-bezier(.2,0,0,1),border-color .18s;display:grid}.room-mode-button:hover,.room-mode-button:focus-visible,.room-mode-button.is-active{color:var(--ink);border-color:var(--water)}.room-mode-button.is-active{background:oklch(71% .12 185/.1);padding-inline:.55rem}.room-mode-button>span,.room-mode-button>i{color:var(--water-ink);letter-spacing:.07em;font-size:.62rem;font-style:normal}.room-mode-button strong{font-family:var(--serif);letter-spacing:-.03em;font-size:clamp(1.35rem,2.5vw,2.35rem);font-weight:400}.room-detail{padding:clamp(2.5rem,5vw,4.5rem) 0 0}.room-detail-kicker{color:var(--water-ink);letter-spacing:.09em;text-transform:uppercase;margin-bottom:1.2rem;font-size:.59rem;display:block}.room-detail h3{max-width:12ch;font-family:var(--serif);letter-spacing:-.035em;text-wrap:balance;margin:0 0 1.3rem;font-size:clamp(2rem,3.8vw,3.6rem);font-weight:400;line-height:.98}.room-detail p{max-width:28rem;color:var(--ink-soft);text-wrap:pretty;margin:0;font-size:.8rem;line-height:1.8}.room-trust-line{border-top:1px solid var(--line);color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase;grid-template-columns:1fr auto 1fr;align-items:center;gap:1rem;margin-top:clamp(4rem,9vw,8rem);padding-top:1rem;font-size:.6rem}.room-trust-line span:nth-child(2){color:var(--signal-ink)}.room-trust-line span:last-child{text-align:end}.echo-section{color:var(--paper);background:var(--signal);padding:clamp(5rem,10vw,10rem) max(1.5rem,50% - 43rem) 1.5rem}.echo-heading,.echo-layout,.site-footer{z-index:1;width:min(100%,86rem);margin-inline:auto;position:relative}.echo-heading{border-bottom:1px solid oklch(95% .018 88/.38);justify-content:space-between;padding-bottom:1rem;display:flex}.echo-heading .section-index,.echo-heading>span{color:oklch(95% .018 88/.72);letter-spacing:.09em;text-transform:uppercase;margin:0;font-size:.6rem}.echo-layout{grid-template-columns:minmax(16rem,.8fr) minmax(20rem,1.2fr);align-items:center;gap:clamp(2rem,8vw,9rem);padding:clamp(4rem,8vw,8rem) 0;display:grid}.echo-copy h2 em{color:var(--sun)}.echo-copy>p{color:oklch(95% .018 88/.76);text-wrap:pretty;max-width:27rem;margin:1.8rem 0 2.7rem;font-size:.8rem;line-height:1.8}.echo-form{max-width:31rem}.echo-form>label{color:oklch(95% .018 88/.8);letter-spacing:.08em;text-transform:uppercase;margin-bottom:.7rem;font-size:.59rem;display:block}.echo-input-row{border-bottom:1px solid oklch(95% .018 88/.62);grid-template-columns:minmax(0,1fr) auto;display:grid}.echo-input-row input{min-width:0;min-height:3.25rem;color:var(--paper);caret-color:var(--sun);font-family:var(--serif);background:0 0;border:0;outline:0;padding:.5rem 0;font-size:1.55rem}.echo-input-row input::placeholder{color:oklch(95% .018 88/.52)}.echo-input-row input:focus-visible{outline:2px solid var(--sun);outline-offset:3px}.echo-input-row button{min-height:3.25rem;color:var(--paper);cursor:pointer;letter-spacing:.08em;text-transform:uppercase;background:0 0;border:0;align-items:center;gap:.45rem;padding:.5rem 0 .5rem 1rem;font-size:.6rem;transition:color .16s,transform .16s;display:inline-flex}.echo-input-row button:hover{color:var(--sun)}.echo-input-row button:active{transform:scale(.96)}.echo-status{letter-spacing:.04em;color:oklch(95% .018 88/.68)!important;margin:1.15rem 0 0!important;font-size:.65rem!important}.echo-status strong{color:var(--sun);font-weight:500}.echo-visual{background:var(--ink);border:1px solid oklch(95% .018 88/.45);min-height:25rem;position:relative;overflow:hidden}.echo-visual:before{content:"";border:1px solid oklch(95% .018 88/.16);position:absolute;inset:1.25rem}.echo-visual-topline,.echo-visual-bottomline{color:oklch(95% .018 88/.6);letter-spacing:.09em;text-transform:uppercase;justify-content:space-between;font-size:.57rem;display:flex;position:absolute;left:1.75rem;right:1.75rem}.echo-visual-topline{top:1.9rem}.echo-visual-bottomline{color:var(--water);bottom:1.9rem}.echo-bars{border-bottom:1px solid oklch(95% .018 88/.35);align-items:end;gap:clamp(.2rem,.8vw,.7rem);height:9rem;display:flex;position:absolute;bottom:6.2rem;left:2.25rem;right:2.25rem}.echo-bars span{min-width:.2rem;height:var(--bar-height);background:linear-gradient(to top, var(--water), var(--sun));transform-origin:bottom;animation:.9s cubic-bezier(.2,0,0,1) both bar-arrive;animation-delay:var(--bar-delay);flex:1}.echo-word{color:oklch(95% .018 88/.94);font-family:var(--serif);letter-spacing:-.05em;text-align:center;text-overflow:ellipsis;white-space:nowrap;font-size:clamp(2rem,5vw,5rem);line-height:.9;position:absolute;bottom:7rem;left:2rem;right:2rem;overflow:hidden}.site-footer{color:oklch(95% .018 88/.7);letter-spacing:.08em;text-transform:uppercase;border-top:1px solid oklch(95% .018 88/.38);justify-content:space-between;gap:2rem;padding-top:1rem;font-size:.58rem;display:flex}.site-footer a{color:var(--paper);align-items:center;gap:.4rem;text-decoration:none;transition:color .16s;display:inline-flex}.site-footer a:hover{color:var(--sun)}@keyframes pulse-point{0%,to{opacity:.55;transform-origin:50%;transform:scale(.8)}50%{opacity:1;transform-origin:50%;transform:scale(1.45)}}@keyframes bar-arrive{0%{opacity:0;transform:scaleY(0)}to{opacity:1;transform:scaleY(1)}}@media (width<=760px){.shared-room-section{width:min(100% - 2rem,40rem);padding-top:5rem}.room-heading{grid-template-columns:1fr;gap:.6rem}.room-heading-note{text-align:start}.room-intro,.room-layout{grid-template-columns:1fr;gap:2rem}.room-intro{margin-block:4rem}.room-diagram,.room-svg{min-height:20rem}.room-trust-line{grid-template-columns:1fr;gap:.6rem}.room-trust-line span:nth-child(2){display:none}.room-trust-line span:last-child{text-align:start}.echo-section{padding-inline:1rem}.echo-heading{gap:1rem}.echo-heading>span{text-align:end;max-width:10rem}.echo-layout{grid-template-columns:1fr;gap:3rem;padding-block:4.5rem}.echo-visual{min-height:20rem}.echo-input-row{grid-template-columns:1fr}.echo-input-row button{justify-self:start;padding-left:0}.site-footer{flex-direction:column;align-items:flex-start;gap:.7rem}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.chamber-glow,.orbit,.signal-path,.method-figure-orbit,.method-thread,.room-ring,.room-pulse,.echo-bars span{animation:none!important}}